The first coin ever issued in maple wood, this Democratic Republic of the Congo 5 Francs coin commemorates efforts to preserve apes and their rainforest habitat. Threatened by poaching, habitat loss and Ebola disease, the great apes - man's closest relatives - once faced extinction. But thanks to conservationists, they've made a comeback. This unique wooden coin features a gorilla's expressive face and bulky chest. Only 2,000 issued.